Parneam, N.; Isarankura Na Ayutthaya, S.; Yingshataporn-a-nan, T.; Thusanaphoom, P.; Pokamas, K.; Sukhawipat, N.; Wootthikanokkhan, J.; Chailad, W. Rheological and Molecular Modifications of Recycled PET Induced by Chain Extenders for Enhanced 3D Printing Processability. Applied Science and Engineering Progress 2026, 19, 8107.